Ultimaker Original feeder gear upgrade
Description
Replacement For The Original Wooden Extruder Gear. Works With The Ultimaker Original And The Ultimaker Original +. I Was Not Very Happy With The Existing Designs As Their Teeth Profiles Didn'T Match The Motor Gear Or They Were Non-Symmetrical Or It Wasn'T Possible To Fasten The Stepper Screws With The Wheel Mounted... So I Decided To Start From Scratch And Build A New One. Features: - Very Good Fitting To The Stepper Pinion. It Has Involute Teeth, Matching The Distance Of The Axes And The Numbers Of Teeth. - You Can Use This Wheel With Only One Washer Between The Bearing And The Gear To Get Maximum Tooth Contact Area. (However Opening The Extruder Clamp Can Be A Bit Tricky If You Assembled It To Close...) - Fastening Of Stepper Screws Possible - The Backlash Is Very Small If The Stepper Motor Is Aligned Properly (Might Increase Retraction Quality) - M8 Nut Should Fit In Nicely. - Design Makes It A Very Rigid Structure (Even @20% Infill) - Prints Without Support Material Updates: 10.05.2013: Now With Thicker Teeth. Can Be Printed Without Support Material And No Need For Second Variant. Thanks To Noctis For The Hint! Note: Photos Are Outdated (They Show Version 1) 29.04.2013: Added Second Stl File For Use With Two Washers. This One Is Easily Printable Without Support Material And Has No Clearance Grooves.
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